<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        table{
            border: 1px solid rgb(192, 85, 85);
            width: 400px;
             table-layout: fixed;
             border-spacing: 0;
             border-collapse: collapse;
        }
      th, tr,td{
        border: 1px solid rgb(192, 85, 85);
        text-align: center;
       }
    </style>
</head>
<body>
    <table>
        <caption>人员信息</caption>
        <thead>
            <tr>
                <th>序号</th>
                <th>姓名</th>
                <th>年龄</th>
                <th>性别</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>1</td>
                <td>张三</td>
                <td>18</td>
                <td>男</td>
            </tr>
            <tr>
                <td>2</td>
                <td>李四</td>
                <td>20</td>
                <td>女</td>
            </tr>
            <tr>
                <td>3</td>
                <td>王五</td>
                <td>22</td>
                <td>男</td>
            </tr>
            <tr>
                <td>4</td>
                <td>赵六</td>
                <td>24</td>
                <td>女</td>
            </tr>
        </tbody>
    </table>
</body>
</html>